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    [System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String("NjE3Mzc0NjExMDgzNzU3MjY2Mjg2NzczNjE2OTcyMTA2Mzc1NzM=")) | % { 
      $a = $_; $s = ""; 1..($_.Length / 2) | % { $s+= [char]([int]$a.Substring($_*2-2, 2) + 36) 
    }; $s }